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|Author(s):||Gregory T. Linteris; Mauro Zammarano; Boris Wilthan; Leonard M. Hanssen;|
|Title:||Absorption and Reflection of Infrared Radiation by Polymers in Fire-Like Environments|
|Published:||July 17, 2012|
|Abstract:||In large-scale fires, the input of energy to burning materials occurs predominantly by radiative transfer. The in-depth absorption of radiant energy by a polymer influences its ignition time and burning rate. The present investigation examines two methods for obtaining the absorption coefficient of polymers for infrared radiation from high-temperature sources: a broadband method and a spectral method. Data on the total average broadband transmittance and absorptance for eleven thermoplastics are presented (as are reflectance data), and the absorptance is found to vary with thickness. Implications for modeling of mass loss experiments are discussed.|
|Citation:||Fire and Materials|
|Pages:||pp. 537 - 553|
|Keywords:||pyrolysis modeling, material flammability, IR absorption, polymer diathermicity|
|Research Areas:||Fire Materials Research|
|DOI:||http://dx.doi.org/10.1002/fam.1113 (Note: May link to a non-U.S. Government webpage)|
|PDF version:||Click here to retrieve PDF version of paper (876KB)|